morse



1 Beitknownt-hat I, Annnnniot" v Easton, county pfsiiismrstate of yiviinsae.m satt's, haweinventedA anImprovement-in Heat jl y RegulatingDevicesgofwhahah@ renewing l j description', in connection "with thefaccompaerf A i n ying drawings, a specification, likeletters c and hgures onthedrawngs representinguiike tpartsn :which shall also loev capable of properly con In accordance lwith thisinvention a ther-` ",mostat in the roointheiemperature lotl which an electro-magnet or {solenoidythe varmature ever, which is acted upon by a `force tending o 1rotate it, rotation `ot the trip-lever,moving heat-regulating valves. c As theheatregulating mechanism operates to move the dampers v `or regulating-valves in onedirection it autoythermostat is preferably provided with additional safety-contacts arranged outside of the usual contacts nfora purposetobehereinafterl c Y c c c v f f Which,'as represented, leads-to-and controls described. l c p When the regulatingfdevice is employed in ers--an Vadditional,thermostat is placed upon or adjacent to the heat-generatorin suchaf manner as to be sensitive to and operated by` thetemperature of the heating medium and c Vendl has a slotBto receive the stud or screw "dfonone end of the trip-leverp, herein shown c n pirated1 `."ttits middleon and fast to the shaft y preferably unaected by the temperature of the external atmosphere. By placing agther" mostat in this manner theactio'n of thefgenf'f erator may be checked when the heating meheating eiects.

One part of this inventiontherefore "con-5" STATES HEArQ LATfIN c ""nsvicfs 7 a ,l y Apenas@ and Amaai leon This inventionhas forits cbject toproduce i iheetltrulati11sl` `devicesivflrlsirfitsllfeilf `struction and :capable "of` jmoving ,glargeg or heavy-dampers for regulating-valves and one `trollingthe temperature atalltimes and `when necessary obtain the maximum heating eiect.v`

is to be` controlledis"placedfin` circuit with `,ciwhich controls thenioveinentsof atripe" a leveror arm, which moves the dampers or"` matically sets itself to move them back again in the opposite direction whenfth'e thermostat` is properly closed for such operation;Y The l connection with certain types of heat-gener` ators--such, for instance, as hotwater heat-ll controls 'thecheck or dium has reached the temperature at 1 whichl it can be employed to best advantagefor PATENT OFFICE EAST@sMASSAGHUSrnS-fN f'rroN formng-pagg o Letters-:Patent Nb."474,139, dated may 3, 1892.

SerialgNo. (Nojmodel.) l l controlled bysaid thermostat, combinedwith awthermostat arranged to` respondto the changes inthe l temperature of the heating medium and alsoincircuitwith and to control said regulating mechanism andyvhen mmnedf"` fto operatesaid regulating mechanism tovlcut' i the thermostat inthe said room 'in'or out of y y oircuit, substantially. as willgbe kdescribed `-`also, in aheatfregulator containing the `fol; l,lowing` instr-uinentalities, vizi a regnlating- "arm,atripdever to'move the same and actn-` `tro-niagnet,itsarmatnre,andareleasing-lever ating "means 'for vthe said trip-lever, an elec# held thereby to controlthe said trip-lever,'to operate substantially as will be described, l, g

Other features-ot"- thisfinventionwill be hereinafter described, fand set forth in the "claims. l

Figure l represents a heatgeneratcr and a y heat-regulating device embodying this inveur tion.` Fig Qona'nv enlarged scale represents l in `elevation the regulating mechanism shown in Fig. lgandlign a righthand end elevation of Fig. 2.. l l

Referring tothe drawings, theframe A of theregulating mechanism may be of any suitableshape and construction tosustain` theva- `rions parts. l A regulatinglever or arm B, pivoted atcb to 'the frame, has, as ,herein` repre- `sented,`latorally,-` extendedyarms b', each oi A which is provided Withva-serieso holes b201- otherfsuitable devices, tofwhichk may beattachedqthe cords or chains c, Fig. 2, one of thetrontdamper or-regulatibgvalvehof any -usual heat-generatorH, itfbeing represented `as abbot-water heater having circulating-pi pes, and the other chain or cord `c leads to and the heatgenerator, v l l Y Theregulating lever or `arm at its outer d', journaled in theframe, at the opposite side 'ofwhichthe'said 4shaft has fastto it a spurgeandherein represented inr mesh with the preferably largerfgear e, loosely mounted on cold-air damperh of ashaftj-also jonrnaled in theframe. The l vshaft f, provided with a suitable winding- IOS trolled pawl V-ffon the gear-wheel c,'a cord g being wound upon the said drum, to the end of which is hunga Weight w.

The trip-lever Dat its upper en'd bears against the short arm of a releasing-lever m, pivoted at mto the frame, the long arm 12 of the releasing-arm being held against the I' stop 5 and against the action of aspring 6 by nected by wires 18 19 with two insulated con- -a hook n on the armature not an electromagnet or soienoid'N, mounted on the fr ame`,

asl shown.

The magnet N circuit-with a thermostat T, Fig. 1, which latter is placed in any room the temperature of which' it is desired to regulate.

Referring to Fig. 1, the wire'l leads from one pole, of the battery or generator G to the lamina or thermal stript of the thermostat T, the end of the said lamina movin gbetween the two iixed contacts 16 1.7, which latter are contact-pens 25 26 on the frame A.

I The regulating-arm 'B has acontact, herein represented as a pin bx, which when the lever in one position, as shown, makes electrical contact with the 'pen 25 and when the lever is in its other dotted-line position makes con'- tact with the pen 26, thus establishing a circuit through the said pens 25 26 and the'leverv or arm B and the frame'A, thence by Wire 30 to and through the magnet N, and bywire to the other pole of the battery or generator Gf.

Assuming the parts to bein the full-line position, Fig. 1, theopcration ot myimproved regulator is as follows: 1When the temperature in the room in which the thermostat is placed', has risen to a predetermined point, the lamina of the thermostat will have expanded suiiiciently to contact with the fixed contact 17, closing the circuit through the'pin bxand pen 25 and the magnet N and attracting the armature 'n of the magnet. When the armature 'n of the magnet is attracted, its hook n" is disengaged from the end of the long arm 12 "of the releasing-lever m,which is immediately moved to one side in the direction of thearrow by the action of the trip-leven D against its short arm lO, permittingthe weight fw, acting through .the drum f and gear-wheels e and dto rotate the tri p-lever D- one-half revolution, or until its opposite' end strikes against-the short arm of the releasing-f lever, which has in the meantime 'been returned by the spring 6 toits norma-l position, as shown, and there heid by the now retracted armature. The movement ot thetrip-leve'r r D/through one-half a revolution, asdescribed,

carries the regulating-arm B to its lowcrmost dotted-line position, Fig. 2, which. will act to close the front damper h of the heater 1l and open the back damperh" te thus check-or re tard the action of the heater. As the lever B is moved to its lowermost position, thecircuit stili being closed by the thermostat and the armature of the magnet N still attracted, the pin bx on the said lever is moved oit from the in the present embodimentI vof this invention is placed in normally-.open

pen 25, breaking the circuit atl that point and releasing the armature of the magnet,

which falls to its retracted position to catch and holdthe longarm of the releasing-lever m, now returned toits normal position by its spring 6 and ready to receive against the tri p-lever D as it is rotated by the action of the weight. As the regulating-arm B is moved down, thepin bx'referred to is carried from the pen 25 to the pen 26, completing the circuit by wire 18 at this point in order that when the temperature in the room has dropped toI the required .point 'the thermostat, as it contracts in the.opposite directiommay close the circuit through the contact 1 '6 and operate the regulator, as before, to move the arm B back again toits uppermostposimon and change the position of the dampers h and h to the former position, as shown. Were it not for the arrangementof pens 25 and 26 to co-operatc with the pin bxvon'the arm Btl 1e thermostat,

havingclosed the circuit through one ot the contact-s 16 17 would hold the circuit so closed sometimes for a considerable period ot' time,

or until thetemperature had risen or dropped to the required point, and thus run out or drain the battery; but by employing such an arrangement'of pens 25 26 and. the pin bx lon the movable arm B one of the circuits only is closed or in operative condition at a time, the open circuit always being the one last emthe regulator is operated over one Wire, as 19, to check the heater; the continuity ot the cirployed to operate the regulator. Thus when IOO cuit over that wire 19 is immediately broken at the'pen 25 and the continuity ot the circuit by Wire 1S is established at the pen 26, which circuit is then in condition to be operated upon when the temperature has fallen to the required point, and .Whether the thermal strip of the thermostat remains in contact with either ot the contacts 16 17 or not it cannot operate to drain the batteryG, for the reason that the continuity of the circuit through that particular contact is always broken at its pen 25 or 26. Again, the movements of the parts are so timed with relation 'to each other that the trip-leverD shall clear the releasing-lever 'm and permit it to be returned hy the spring 6 to its normal position against the stop 5 before the'circuit is broken by the movement of the pin bX 0E from the pen 2,5 or 26 with which it was in contact, thus holding the'armature in its attracted position until the releasing-lever has been returned to its normal position, when the circuit, ybeing then broken by the' pin b moving from its pen, 'drops the hook ln. of the arma- IIC ture down over the end of the releasing-lever 'to hold it in piace. The releasing-lever therefore is not compelled on its return movement toV lift the armature in order to get behind the hook fn', for the hook is held clear 'of it by the magnetnntil it is so returned, makingrit possible to employ a very light spring 6.

While a weight sufficiently heavy to operate any damper or valve may he hung from anism is such that a comparatively smallv magthe drum f,stil1 thelet-ol orreleasinginechnet N and a light 'batterywilloperate the same.

The cords or chains c operating the dampers may be attached to therarms bat such holes or points as will give the required movements to the dampers one with relation t the other. Y

Y While lI preferably employ a weight w, still l a suitable spring may be employed 4to rotatey directly to the arm B.

. the shaft d and trip-lever D, and,` ifV desired,

the actuating power or force may be `applied directly to the shaft gi. A

The arm B maybe employed to movea steam or other valve instead ot the damper-shown, and the cords or connections c may be attached.`

The thermostat-T is herein represented as providedwith .additional safeiycontacts 50 beyond or..ontside of the contacts` 16 `1f?, so

that if` the temperature in the particular room i 1n which the thermostat is placed should by some other or ontsideymeans be caused to drop to a considrable degree beyond the limit -as fixed by the regular contact 1'6,the remainder of thevhouse being at the proper temperature,

the thermal strip` or-contact-arni twill con. tinue to movebeyond the contactland con-H tact with the safetycontact 50,.which is also in circuit, as shown, to operate to reverse'the dampers from the positionin `which they were left by the `last action of the contact liadjacent to it to `their former condition.

If, for instance, when the house as a whole is atthe desired temperature 'a window in a closed room in which the thermostat is placed `should be thrown'open, the temperature in' that room only would dropuntil the thermostat' should close the circuit through the contact 16 and open the dampers, whichgvould act to throw still more heat into the already properly heated house, which would heat' it to au excessive temperature, and stillwithout raising the temperature in the particular room `in which the thermostat is placed,` owing to the open window, which keeps` the `temper-` ature down. To obviate such a condition' of aiairs, the safety-contact 50 is provided, so

that when the low temperature in a particu.- lar room causes the thermal strip or contactarm to move beyond the regular contact,.as

mentioned in the above case, it will contactA with the safety-contact at that side which is herein shown as in circuit with the opposite regular contact 17 and will operate toi reverse the action of the regulating device caused by the contact with the regular contact` 16 adjacent to it and againclose the dampers `to preserve the former or desired temperature in the house as a whole irrespective of the particular room in which the thermostat maybe placed. p

If desired, a bell or other alarm may be placed in circuit withthe safety-contacts.

I' have herein 'represented an additional thermostat T placed upon oradjacenttothe 'mediunty A c It is well known that as soon asstearn begins to form it will interfere `with tl`re,c1rcui` `circuit through the. laminag..`

`heat-generator H, which inthis instance is a hot-water heater, hot waterbeingfthe heating lation of the'hotwaterin the-heating-pipes; Y

perature offthe water at `the-highestpossible point in orderto obtain, the` greatest heating.

`Therefore itis desirable to maintainihetem- 7: c c i.

ture for heating eEecta-but'beforethe beginj ningof formation Tof steam, lamina to .expand"sufiiciently.c`

, d @mecum which latteris tapped into `'th which contact will cause the regulating mech` `f anism to` operate to close `the darnplers'` of the heater.

contact() the lamina cfr-the thermostat1'1"l y just previousto closing the circuitthr1-"ouah"` i thezsaidcontact will separatev the pens "7071"A `in the line 18 and break the line 18` at that `point, thus rendering the contact 16, with In movingto close thecircnitthroughthe f which the Vlamina t is `in contact to obtain Y more heat, inoperative to avoid immediately opening the dampers againfthrough the 1am-` ina t and contact 16 of thethermostat'l when `they have been closed by the thermostat T. i i

When the temperature of the water-orheating medium has ldropped to the point where thefmaximum heating eifect may be. pro`` A duced without danger'oi` forming` steam, then and not until then willthe thermostat'll" operate to break "the circuit through 1pts contact 60 andalso restore `the continuity of the cirl cuit throughl the lie `lf3 to place theregrr` lating mechanism andtheh,eater oncemore under Athe control ofthe thermstatr'll.' The the 4'thermostat in the room tohe heated, nn-

le'ss'the'water shouldbe heatedto the steamf f point; when the safety-thermostat'l" will opyheateris. thus under the exclusivecontrol of` eratey to preventithe formation otsteam, f

which would injure the heating effect of the water.

If the temperatureof-the room should rise and the thermostat T should move to close the circuit 'through .the contact 17 and the regulating mechanism should fail to operate to close the dampers, the continued ris/ing of the temperature would cause the laminat to further expand. and move beyond the contact the circuit through said safety-contact and .I` `2 5 17 to the safety-contactbeyond it and close branch line to ringa bell X or other alarm device to notify the attendant thatthe regulatlng mechanism has failedto operate. c

Bothsafetyfcontacts 50 may, ifdesired, be

connected to act in opposition"totheiradja#n f cent regular contactsinstadof one, asnow shown; i f

I do'not herein claim',broadly,athermostat having additional safety-contacts, as such a thermostat forms the subject-'matter of an other application to be tiled by me. y

,This invention is not limited to the particu- 'lar arrangement and construction'shown, as

the saine may be varied withoutdeparting from thescope of 'the invention.

'1. In a heat-regulatingdevice, the combination, with a regulating mechanism,of a thermostat, the contact-arm of which normally moves between two contacts in circuit with and to control said. regulating'mechanism,

and' the safety-contact 50, also in circuit' with said'regulating mechanism,- to operate sub stantially as described.

2. A heat-regulator containing the following instrumentalities, vizz' a regulating-arm,

a trip-lever to move thev same and actuating means for the said'trip-lever, an electro-magnet, its armature, and a releasing-lever held thereby to control the said trip-lever, to operateI substantially as described.

3. A' heat-regulator containing the followving instrumentalities, viz: a regulating-arm,

a vtrip-lever pivoted at its middle and mechanism to rotate the same, and a connection between said trip-lever and regulating-arm, whereby rotation of the former will move the latter, a releasing-lever acted upon by one end-of the trip-lever, and an electro-'magnet and its armature to control the releasing-lelvente operate substantially as described,

4. A heat-regulator containing the following instrumentalities, viz: a frame, a shaftone end thereto and having a slot at its free end, combined with-a shaft `journaled in said frame and mechanism to. rotate it, a trip-lever D, 'fast to said shaft and connected with the free end of the said regulating-lever by a stud located in the said slot, and an electro-magnet, its armature, and kmechanism controlled thereby to hold said trip-lever, to operate substantially as described.

6. A frame, a regulating-lever pivoted at one end. thereto and having a slot at its free end,`combined with a shaft journaled in the said frame and mechanism to rotate the same,

a trip-lever D, fast to said shaft, and a stud d in the said 4slot and carried by one end of the said trip-lever, the releasing-lever m, pivoted at fm', andan electro-magnet and its armature n, provided with a hook n', to operatev substantially7 as described..

7 A frame, a regulating-lever B, pivoted at b and having arms b', provided with a series of. holes b2, and a slot Bin the free 'end of thesaid regulating-lever, combined with' a' shaft journaled insaid frame and mechanism to rotate it, af trip-lever D, fast to'said shaft and connected with the free end ofthe said: regulating-lever by a stud located A1n the said slot,l and an electro-magnet, its armature, and mechanismcontrolled thereby to hold said trip-lever, to operatesubstan tiall y as' described.

8. A frame, a regulating --lever movable thereon, an electro-magnet, its armature,"and

mechanism' controlled thereby tomove the said regulating-arm, combinedwith two'contacts insulated from saidframe,one of wh1ch 'is in contact with the said regulating-arm at atime, anda thermostat vhavingthreeflired'contacts electrically connected with saidinsu lated contacts,'substantially as and for the purpose specified.

9. A heater, a thermostatl placed in 4the room f to be heated and adapted to respond to changes in the temperature of the room, and

a regulating mechanism in` circuit with and controlled by said thermostat, combined-with a thermostat arranged to respond Ato the changes in the temperature of the heating lnedium and also in circuit with and to control said regulating mechanism and when moved to operate said mechanism to cutthe thermostat in saidroom in or out of circuit, substantially as described.

10.'In a heat-regulating device, aregulating mechanism and a thermostat T, having 'wo contacts connected by wires 18 19 with and to control said regulating' mechanism, conibined with a thermostat T', connected in clrcuit to operate in connection'with the wire 19 of the thermostat T, and the pens 70 71,

placed in the line 18. and adapted to be separated by operation ot the thermostat T to direct the circuit of the therinostatT through the wire 18, substantially'as described.

- 11. In aheat-regulatingdevice,aheaterand a regulating mechanism to control the same, combined with a-thermostat having a contact-arm, a contact, arranged at one side of said contact-arm to co-operate therewith and arranged in circuit with and to operate said arranged beyond said first contact and. in circuit with saidy regulating mechanism, closure of the circuit through the said second contact acting to operate the said regulating mechanism to reverse the effect caused by the op- IOO ilo

regulating mechanism; and a second contact eration of the said mechansmbyclosure with the first of thesaid contacts, Vvsubstantially as described.

In testimony'whereof I have signedmy name to this specification in the presence of two subscribing witnesses.

ALFRED B. MORSE;

- Witnesses: 1 BERNICE J. NoYEs,

EDWARD F. ALLEN. 

